福建中立恒自动化设备有限公司
1．输入/输出单元
输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。
PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。
由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。
I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。
PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。
常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。
常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。
继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。
PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。
2．通信接口
PLC配有各种通信接口，这些通信接口一般都带有通信处理器。
PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。
PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。
与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。
3．智能接口模块
智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。
它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。
PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。
以下链接皆有货
SCHNEIDER LRD340 THERMAL OVERLOAD RELAY RANGE 30-40AMP
SIEMENS 3VM9117-0FK51 DOOR MOTED ROTARY OPERATOR HANDLE 3VM 100-160A
M.S CJX2-3201M7 POWER CONTACTOR 32A VOLTAGE 220VAC
SCHNEIDER ELECTRIC DM1110 SINGLE PHASE AMPERE METER VOLTAGE 90-277VAC
TELEMECANIQUE RXM4AB2JD RELAY VOLTAGE 12VDC LOT OF 10PCS
MEAN WELL SD-50B-12 POWER SUPPLY INPUT 24VDC OUTPUT 12VDC 4.2AMP
TELEMECANIQUE LR2D3359 THERMAL OVERLOAD RELAY RANGE 48-65A
HUBBELL CSB220W 20A DOUBLE POLE SWITCH PCS
GE CL00A301TN POWER CONTACTOR 16AMP COIL VOLTAGE 220VAC
SIEMENS 7PV1578-1BW30 TIMER TIMING 1S TO 100H VOLTAGE 12-240VAC/DC
ALLEN BRADLEY 700-K40E-ZA AUXILIRY CONTACTOR 10AMP VOLTAGE 220VDC
LEUZE ELECTRONIC MSI-SR4 EMERGENCY SAFETY RELAY 24VAC/DC ()
FUJI ELECTRIC TR-4N THERMAL OVERLOAD RELAY RANGE 54-80A
Carlo Gavazzi FMB01DW24 Mulifction Timer 12-240VAC
SIEMENS 7PV0732-1AV20 TIMER TIMING 0.1S-999H VOLTAGE 20-240VAC/DC
CROUZET MUR3 88826103 ELECTRONIC TIMER VOLTAGE 240V AC
SIEMENS 3RT2025-1AN24 POWER CONTACTOR 25A VOLTAGE 220VAC
SIEMENS 3RU1136-4GD0 THERMAL OVERLOAD RELAY RANGE 36-45AMP
TELEMECANIQUE LRD3359 THERMAL OVERLOAD RELAY RANGE 48-65AMP
Telemecanique ABL 7CEM24003 Power Supply Output 24Vdc 0.3amp
SCHLEICHER NGZ 12-S ELECTRONIC TIMER VOLTAGE 24-240VAC
TELEMECANIQUE RE88865265 DELAY TIMER VOLTAGE 24-240VAC
SIEMENS 3RP1525-1AP30 ELECTRONIC TIMER VOLTAGE 220VAC
SCHNEIDER RE22R2KMR TIMER TIMING 0.05S-10MIN VOLTAGE 24-240VAC
TELEMECANIQUE RE7RB11MW TIMER TIMING 0.05S-10MIN VOLTAGE 24-240VAC/DC
ABB CT-VWD.12 E234 TIMER TIMING 1S-100H VOLTAGE 24-240VAC/24-48VDC
SIEMENS 3TH43 55-0AN1 AUXILIRY CONTACTOR COIL VOLTAGE 220VAC
TELEMECANIQUE LRD32 THERMAL OVERLOAD RELAY RANGE 23-32AMP
SIEMENS 3VT9100-1SE00 VT160AMP SHTCOIL VOLTAGE 230-400VAC/220VDC
SIEMENS 3RT2024-1AV60 POWER CONTACTOR 20AMP VOLTAGE 220VAC
SIEMENS 3RU2126-1HB0 THERMAL OVERLOAD RELAY RANGE 5.5-8AMP
SIEMENS 3RU2126-1JB0 THERMAL OVERLOAD RELAY RANGE 7-10AMP
ABB A26-30-01 MAGNETIC CONTACTOR 26AMP VOLTAGE 220VAC
SCHNEIDER LP2K0601FD REVERSING CONTACTOR COIL VOLTAGE 110VDC
SIEMENS 3RP2005-1AP30 ELECTRONIC TIMER VOLTAGE 220VAC
CALECTRO CMT MULTITHERMOSTAT RELAY VOLTAGE 220VAC
HKC APL-210N LIMIT SWITCH VALVE POSITION MONITOR VOLTAGE 110-250VAC FAST
Omron E5C2-R20K Industrial Control System VOLTAGE 110-240VAC
BE SWITCH BEOD800T-230 ELECTRONIC TIMER TIMING 0.1S-60S VOLTAGE 230VAC
OMRON TL-XP5 PROXIMITY SWITCH 200MA VOLTAGE 10-30VDC
OMRON E2C-AM4A PROXIMITY SWITCH AMPLIFIER IT VOLTAGE 12-24VDC
AEG LS 4K.10 POWER CONTACTOR 10AMP COIL VOLTAGE 110VAC
SIEMENS 3VF9221-1JV10 SHT TRIP COIL VOLTAGE 380-415VAC
SIEMENS 3VA1096-3ED32-0AA0 CIRCUIT BREAKER 16AMP 220VAC 36KA 3POLE
MITSUBISHI ELECTRIC NF32-SV CIRCUIT BREAKER 25AMP 220VAC 7.5KA
SCHIELE ERS TIMETRON VOLTAGE 220V AC RELAY MODULE
TENSE ERV-08 ELECTRONIC TIMER VOLTAGE 220VAC
SCHNEIDER ELECTRIC LRD3359 THERMAL OVERLOAD RELAY RANGE 48-65AMP
SCHNEIDER LRD3361 THERMAL OVERLOAD RELAY RANGE 55-70AMP
LS GMC-22 MAGNETIC CONTACTOR 22AMP COIL VOLTAGE 220VAC
SQUARE D 9422A3 FLANGE MOTED OPERATING HANDLE 4 INCH
TERASAKI TEMBREAK XS50NS CIRCUIT BREAKER 40AMP 220VAC 25KA
OMRON LY4N-J 24VDC RELAY 14 PIN WITH BASE PTF14 LOT OF 10PCS
ALLEN BRADLEY 700-HK32224 RELAY WITH BASE 700-HN122 LOT OF 10 PCS
PHOENIX CONTACT MINI MCR-SL-PT100-UI-SP RELAY
OMRON H3CR-A8EL-315 TIMER 1.2S TO 300H VOLTAGE 100-240VAC
DANFOSS 018F6730 SOLENOID VALVE FOR COIL VOLTAGE 110VAC
SCHNEIDER LC1D258F7 REVERSABLE CONTACTOR 25AMP VOLTAGE 110VAC
SCHNEIDER ELECTRIC RE17LAMW ON DELAY TIMER VOLTAGE 24-240VAC/DC
SIEMENS 3TF32 00-0AP07 POWER CONTACTOR 18AMP VOLTAGE 220VAC
Omron Flicker Relay Type MKF-P Voltage 24VDC ( PACK)
FUJI ELECTRIC SC-0 SC13AA MAGNETIC CONTACTOR 13AMP 3POLE VOLTAGE 220VAC FAST
LOVATO BFX10 13 AUXILIRY CONTACT ADD ON BLOCK PCS
SIEMENS MOTOR CIRCUIT BREAKER 3RV1011-1BA10 1.4-2AMP 600VOLT
MITSUBISHI ELECTRIC ST-21 MAGNETIC CONTACTOR 21AMP VOLATGE 110VAC
SIEMENS 7PU6040-7NB30 TIMER VOLTAGE 24V DC ( )
SPRECHERSCHUH CA7-37-00 POWER CONTACTOR 37AMP VOLTAGE 110VAC
SCHNEIDER ELECTRIC LRD1512 THERMAL OVERLOAD RELAY RANGE 5.5-8AMP
MITSUBISHI ELECTRIC NF30-SS CIRCUIT BREAKER 15AMP 2POLE 600V
MITSUBISHI ELECTRIC NF30-SS CIRCUIT BREAKER 15AMP 2POLE 600V
SCHNEIDER ELECTRIC RE17RAMU TIMER VOLTAGE 24V AC TO 220VAC
HYDAI ELECTRIC HGC18 POWER CONTACTOR 18AMP VOLTAGE 220VAC
SIEMENS 3TY6 460-0A CONTACTOR KIT SET FOR 3TB-46
ABB A30-30-10 MAGNETIC CONTACTOR 30AMP VOLTAGE 110VAC
SIEMENS 3RP1531-1AP30 TIMER TIMING 0.5S-10S VOLTAGE 220VAC/24VDC
FUJI ELECTRIC TR-3N THERMAL OVERLOAD RELAY RANGE 34-50AMP
ABB TF42-24 1SAZ721201R1051 THERMAL OVERLOAD RELAY RANGE 20-24AMP
SCHNEIDER EOCRSP10RM ELECTRONIC OVERCURRENT RELAY RANGE 1-12AMP
OMRON E5C-THE SOLID STATE TEMPRATURE CONTROLLER TEMP-110V
ALLEN BRADLEY 140CM-C2E MOTOR PROTECTION BREAKER RANGE 6.3-10AMP
TELEMECANIQUE LRD3355 THERMAL OVERLOAD RELAY RANGE 30-40AMP
SCHNEIDER LRD3353 THERMAL OVERLOAD RELAY RANGE 23-32AMP
TELEMECANIQUE XCK M121 LIMIT SWITCH 3AMP VOLTAGE 240VAC
CARLO GAVAZZI DPA51CM44 MONITORING RELAY VOLTAGE 208-480VAC
Raycap strikesorb 40-D-TP1 Surge Protector
DANFOSS 018F6193 SOLENOID COIL VOLTAGE 220VAC
YASKAWA HI-15E5 POWER CONTACTOR 15AMP COIL VOLTAGE 110VAC
SIEMENS 3RP1512-1AP30 TIMER TIMING 1.5S-30S VOLTAGE 220VAC/24VDC
FUJI ELECTRIC SC-4N SPARE COIL VOLTAGE 380-450VAC
OMRON H3D ELECTRONIC TIMER VOLTAGE 250V AC
SIEMENS 3RP1513-1AP30 ELECTRONIC TIMER TIMING 5S-100S VOLTAGE 220VAC/24VDC
EATON PKZM0-10 MOTOR PROTECTION CIRCUIT BREAKER RANGE 6.3-10AMP
ABB 1SDA066317R1 SHT COIL VOLTAGE 220VAC/DC TMAX T1 TO T4
SCHNEIDER GV2ME22 MOTOR PROTECTION CIRCUIT BREAKER RANGE 20-25A
ALLEN BRADLEY 193-ED1CB THERMAL OVERLOAD RELAY RANGE 1-5AMP
ALLEN BRADLEY 193-ED1CB THERMAL OVERLOAD RELAY RANGE 1-5AMP
SPRECHERSCHUH CT3-52 THERMAL OVERLOAD RELAY RANGE 40-52AMP
HYDAI ELECTRIC HMC20W MANGENTIC CONTACTOR 20AMP VOLTAGE 220VAC
OMRON H3BG-8H ELECTRONIC TIMER TIMING 5S-100S VOLTAGE 110VAC
TELEMECANIQUE LT2-SA00F THERMAL TRIP RELAY IT VOLTAGE 110VAC
SCHNEIDER RE9TA31MW ON DELAY TIMER VOLTAGE 24VAC TO 240VAC
SCHNEIDER ELECTRIC LC1D12 F7 POWER CONTACTOR 12AMP VOLTAGE 110VAC
OMRON E3S-BD11 PHOTOELECTRIC SWITCH VOLTAGE 12-24VDC
SIEMENS 3RT1034-1AL20 POWER CONTACTOR 40AMP VOLTAGE 220VAC
FINDER 88.02.0.230.0002 TIMER TIMING 0.05S-100H VOLTAGE 24-240VAC/DC
SIEMENS 3RU2126-4DB0 THERMAL OVERLOAD RELAY RANGE 20-25AMP
SCHNEIDER RE17RMMW MULTIFTION TIMER TIMING 0.1S-100H VOLTAGE 12-240VAC/DC
PHOENIX CONTACT PS/24DC/24DC/5 POWER SUPPLY IN 24VDC OUT 24VDC 5AMP
ABB RD3 230-400VAC Residual Current Monitor IEC60947-2/M
MITSUBISHI ELECTRIC S-K35 MAGNETIC CONTACTOR 35AMP VOLTAGE 110VAC
ANLY AH5N MULTIRANGE ANALOGUE TIMER TIMING 1S-600H VOLTAGE 24-240VAC/DC FAST
CHNT NR2-93 THERMAL OVERLOAD RELAY RANGE 55-70AMP
SIEMENS 3NA3 142-TY NH1 HRC FUSE LINK 224AMP 500V 120KA
SIEMENS 3TF42 22-0AL2 POWER CONTACTOR 18AMP VOLTAGE 220VAC
SIEMENS C25A 3PN CIRCUIT BREAKER 25AMP 4POLE 440VAC 15KA
DELTA PMT-24V50W1AA POWER SUPPLY INPUT 100-240VAC OUTPUT 24VDC 2.1A
MEAN WELL LRS-100-24 POWER SUPPLY INPUT 100-24VAC OUTPUT 24VDC 4.5AMP
MEAN WELL LRS-100-24 POWER SUPPLY INPUT 100-24VAC OUTPUT 24VDC 4.5AMP
ABB MS116-32 MOTOR PROTECTION CIRCUIT BREAKER RANGE 25-32AMP
SIEMENS 3SU1550-0AA10-0AA0 METAL HER PCS
SIEMENS 3RH1911-1FA22 AUXILIRY ADD ON CONTACTOR PCS
ALLEN BRADLEY 140M-C2E-C25 MOTOR PROTECTION CIRCUIT BREAKER RANGE 18-25AMP
SCHNEIDER ELECTRIC XAL D213 COMPLETE CONTROL STATION 2 PUSH BUTTON
SIEMENS 3RB2505-1BW30 TIMER TIMING 1S-100H VOLTAGE 12-240VAC/DC
SIEMENS 3RN1022-1DW00 TEMRETURE MONITURING RELAY VOLTAGE 24-240VAC
SCHNEIDER ELECTRIC LX1D6P7 MAGNETIC SPARE COIL VOLTAGE 220VAC
IDEC RU4S-C-A24 24VAC RELAY 14 PIN LOT OF 8PCS
IDEC RU4S-A24 24VAC RELAY 14 PIN LOT OF 8PCS
CARLO GAVAZZI RMIA45 24VDC RELAY 14 PIN LOT OF 8PCS
SPRECHERSCHUH CZA3-11 30S TIMER ADD ON BLOCK TIMER ( )
SPRECHERSCHUH CZE3-11 30S TIMER ADD ON CONTACTOR TIMER
OMRON H3CR-A-315 TIMER TIME 1.2S TO 300H VOLTAGE 24VAC/DC